Table 1.

Best-fit regression functions for myelinated fiber density data

FunctionFunctionAdjusted R2P value
Human
 SomatosensoryCubic0.8830.002
 MotorCubic0.8840.001
 FrontopolarCubic0.8780.034
 VisualCubic0.9240.001
Chimpanzee
 SomatosensoryQuadratic0.7330.061
 MotorQuadratic0.7220.006
 FrontopolarLinear0.5730.001
 VisualQuadratic0.6870.032
  • Values calculated by using hierarchical multiple regression analysis with adults as endpoint (Materials and Methods).